this is yoenis cespedes, the hot, somewhat young (listed at 26) centerfield prospect out of cuba. he left cuba for the dominican republic and teams will be giving him a ton of money this offseason as a free agent. early reports are that he will likely get more than aroldis chapman two years ago.
the baseball community has been abuzz since this video (which is essentially a highlight film and training video) came out a week or so ago. kevin goldstein from baseball prospectus talks about the video and then talks with cespedes' advisor in the links below, respectively.
*also a quick thank you to kevin for providing us with some advice to start our podcast essentially for free. baseball prospectus is one of the premiere baseball scouting and statistical analytical sites out there. "up and in" baseball prospectus podcast with kevin and jason parks is also a great listen (if you can take 2 hours of baseball scouting talk).